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2709530380 = 2251723813347
BaseRepresentation
bin1010000110000000…
…0010011100001100
320222211110101221001
42201200002130030
521022114433010
61124510350044
7124100425324
oct24140023414
96884411831
102709530380
111170506307
126374bb324
1334247261b
141b9bd4284
1510cd18c3a
hexa180270c

2709530380 has 48 divisors (see below), whose sum is σ = 6029051616. Its totient is φ = 1019325440.

The previous prime is 2709530311. The next prime is 2709530381. The reversal of 2709530380 is 830359072.

It is not an unprimeable number, because it can be changed into a prime (2709530381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 807867 + ... + 811213.

It is an arithmetic number, because the mean of its divisors is an integer number (125605242).

Almost surely, 22709530380 is an apocalyptic number.

2709530380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2709530380 is an abundant number, since it is smaller than the sum of its proper divisors (3319521236).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2709530380 is a wasteful number, since it uses less digits than its factorization.

2709530380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5754 (or 5752 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 2709530380 is about 52053.1495684939. The cubic root of 2709530380 is about 1394.1131004338.

It can be divided in two parts, 27095 and 30380, that added together give a palindrome (57475).

The spelling of 2709530380 in words is "two billion, seven hundred nine million, five hundred thirty thousand, three hundred eighty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 340 2381 3347 4762 6694 9524 11905 13388 16735 23810 33470 40477 47620 56899 66940 80954 113798 161908 202385 227596 284495 404770 568990 809540 1137980 7969207 15938414 31876828 39846035 79692070 135476519 159384140 270953038 541906076 677382595 1354765190 2709530380